A .NET site I am currently working on is being hit rather frequently by the Bingbot on the path:
This is obviously throwing the following exception:
System.Web.HttpException: A potentially dangerous Request.Path value was detected from the client (:).
The bot is valid (I've run a reverse DNS etc), but what I need to know is why it is calling the incorrect robots.txt path.
There are no IIS modules preventing access, rewriting or redirecting.
Any suggestions would be appreciated.